Ethnic Inequalities in Cancer Survival in New Zealand: Linkage Study
Mona Jeffreys, PhD,
Vladimir Stevanovic, MD,
Martin Tobias, MBBCh, FAFPHM,
Chris Lewis, BSc(Hons),
Lis Ellison-Loschmann, PhD,
Neil Pearce, PhD, DSc and
Tony Blakely, PhD
Mona Jeffreys, Lis Ellison-Loschmann, and Neil Pearce are with the Centre for Public Health Research, Massey University, Wellington, New Zealand. Vladimir Stevanovic and Chris Lewis are with the New Zealand Health Information Service, Wellington. Martin Tobias is with the Public Health Intelligence, Ministry of Health, Wellington. Tony Blakely is with the Department of Public Health, Wellington School of Medicine and Health Sciences, University of Otago, Wellington.
Correspondence: Requests for reprints should be sent to Mona Jeffreys, PhD, Centre for Public Health Research, Massey University, Private Bag 756, Wellington, New Zealand (e-mail: m.jeffreys{at}massey.ac.nz).
We explored the contribution of stage at diagnosis to ethnicdisparities in cancer survival in New Zealand. We linked 115811adult patients with invasive cancer registered on the cancerregistry (1994 to 2002) to mortality data. Age-standardized,5-year relative survival rates were lowest for Maori, intermediatefor Pacific people (otherwise known as Pacific Islanders), andhighest for non-Maori/non-Pacific people for many cancers. Stageat diagnosis accounted for only part of these differences. Possiblefactors responsible for ethnic inequalities might include accessto specialized cancer services and the quality of care received.
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